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/*
Language: SAS
Author: Mauricio Caceres <mauricio.caceres.bravo@gmail.com>
Description: Syntax Highlighting for SAS
*/
function sas(hljs) {
// Data step and PROC SQL statements
const SAS_KEYWORDS =
'do if then else end until while ' +
'' +
'abort array attrib by call cards cards4 catname continue ' +
'datalines datalines4 delete delim delimiter display dm drop ' +
'endsas error file filename footnote format goto in infile ' +
'informat input keep label leave length libname link list ' +
'lostcard merge missing modify options output out page put ' +
'redirect remove rename replace retain return select set skip ' +
'startsas stop title update waitsas where window x systask ' +
'' +
'add and alter as cascade check create delete describe ' +
'distinct drop foreign from group having index insert into in ' +
'key like message modify msgtype not null on or order primary ' +
'references reset restrict select set table unique update ' +
'validate view where';
// Built-in SAS functions
const SAS_FUN =
'abs|addr|airy|arcos|arsin|atan|attrc|attrn|band|' +
'betainv|blshift|bnot|bor|brshift|bxor|byte|cdf|ceil|' +
'cexist|cinv|close|cnonct|collate|compbl|compound|' +
'compress|cos|cosh|css|curobs|cv|daccdb|daccdbsl|' +
'daccsl|daccsyd|dacctab|dairy|date|datejul|datepart|' +
'datetime|day|dclose|depdb|depdbsl|depdbsl|depsl|' +
'depsl|depsyd|depsyd|deptab|deptab|dequote|dhms|dif|' +
'digamma|dim|dinfo|dnum|dopen|doptname|doptnum|dread|' +
'dropnote|dsname|erf|erfc|exist|exp|fappend|fclose|' +
'fcol|fdelete|fetch|fetchobs|fexist|fget|fileexist|' +
'filename|fileref|finfo|finv|fipname|fipnamel|' +
'fipstate|floor|fnonct|fnote|fopen|foptname|foptnum|' +
'fpoint|fpos|fput|fread|frewind|frlen|fsep|fuzz|' +
'fwrite|gaminv|gamma|getoption|getvarc|getvarn|hbound|' +
'hms|hosthelp|hour|ibessel|index|indexc|indexw|input|' +
'inputc|inputn|int|intck|intnx|intrr|irr|jbessel|' +
'juldate|kurtosis|lag|lbound|left|length|lgamma|' +
'libname|libref|log|log10|log2|logpdf|logpmf|logsdf|' +
'lowcase|max|mdy|mean|min|minute|mod|month|mopen|' +
'mort|n|netpv|nmiss|normal|note|npv|open|ordinal|' +
'pathname|pdf|peek|peekc|pmf|point|poisson|poke|' +
'probbeta|probbnml|probchi|probf|probgam|probhypr|' +
'probit|probnegb|probnorm|probt|put|putc|putn|qtr|' +
'quote|ranbin|rancau|ranexp|rangam|range|rank|rannor|' +
'ranpoi|rantbl|rantri|ranuni|repeat|resolve|reverse|' +
'rewind|right|round|saving|scan|sdf|second|sign|' +
'sin|sinh|skewness|soundex|spedis|sqrt|std|stderr|' +
'stfips|stname|stnamel|substr|sum|symget|sysget|' +
'sysmsg|sysprod|sysrc|system|tan|tanh|time|timepart|' +
'tinv|tnonct|today|translate|tranwrd|trigamma|' +
'trim|trimn|trunc|uniform|upcase|uss|var|varfmt|' +
'varinfmt|varlabel|varlen|varname|varnum|varray|' +
'varrayx|vartype|verify|vformat|vformatd|vformatdx|' +
'vformatn|vformatnx|vformatw|vformatwx|vformatx|' +
'vinarray|vinarrayx|vinformat|vinformatd|vinformatdx|' +
'vinformatn|vinformatnx|vinformatw|vinformatwx|' +
'vinformatx|vlabel|vlabelx|vlength|vlengthx|vname|' +
'vnamex|vtype|vtypex|weekday|year|yyq|zipfips|zipname|' +
'zipnamel|zipstate';
// Built-in macro functions
const SAS_MACRO_FUN =
'bquote|nrbquote|cmpres|qcmpres|compstor|' +
'datatyp|display|do|else|end|eval|global|goto|' +
'if|index|input|keydef|label|left|length|let|' +
'local|lowcase|macro|mend|nrbquote|nrquote|' +
'nrstr|put|qcmpres|qleft|qlowcase|qscan|' +
'qsubstr|qsysfunc|qtrim|quote|qupcase|scan|str|' +
'substr|superq|syscall|sysevalf|sysexec|sysfunc|' +
'sysget|syslput|sysprod|sysrc|sysrput|then|to|' +
'trim|unquote|until|upcase|verify|while|window';
return {
name: 'SAS',
aliases: [
'sas',
'SAS'
],
case_insensitive: true, // SAS is case-insensitive
keywords: {
literal:
'null missing _all_ _automatic_ _character_ _infile_ ' +
'_n_ _name_ _null_ _numeric_ _user_ _webout_',
meta:
SAS_KEYWORDS
},
contains: [
{
// Distinct highlight for proc <proc>, data, run, quit
className: 'keyword',
begin: /^\s*(proc [\w\d_]+|data|run|quit)[\s;]/
},
{
// Macro variables
className: 'variable',
begin: /&[a-zA-Z_&][a-zA-Z0-9_]*\.?/
},
{
// Special emphasis for datalines|cards
className: 'emphasis',
begin: /^\s*datalines|cards.*;/,
end: /^\s*;\s*$/
},
{ // Built-in macro variables take precedence
className: 'built_in',
begin: '%(' + SAS_MACRO_FUN + ')'
},
{
// User-defined macro functions highlighted after
className: 'name',
begin: /%[a-zA-Z_][a-zA-Z_0-9]*/
},
{
className: 'meta',
begin: '[^%](' + SAS_FUN + ')[\(]'
},
{
className: 'string',
variants: [
hljs.APOS_STRING_MODE,
hljs.QUOTE_STRING_MODE
]
},
hljs.COMMENT('\\*', ';'),
hljs.C_BLOCK_COMMENT_MODE
]
};
}
module.exports = sas;